More work on the seat and baggage ribs today. I added the angle to the two seat ribs that are just outboard of the where the control stick hole will be. The flanges on these ribs have to be reveres so as not to interfere with the stick. I then continued on with riveting the ribs in. All of the ribs are prepped and primed, and just over half are riveted. I have to use a -3 bolt in one location since the rivet got messed up and I could not drill it out cleanly.